<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div class="d1 d"></div>
  <div class="d2 d"></div>
  <div class="d3 d"></div>
</body>
<style>
  .d {
    width: 100px;
    height: 100px;
    margin-bottom: 50px;
  }
  .d1 {
    background-color: aqua;
  }
  .d2 {
    background-color: rgb(75, 38, 55);
    margin-top: 20px;
  }
  .d3 {
    background-color: rgb(255, 0, 76);
  }
</style>
</html>